EP2011998A3 - Fuel pump for internal combustion engine - Google Patents

Fuel pump for internal combustion engine Download PDF

Info

Publication number
EP2011998A3
EP2011998A3 EP20080159492 EP08159492A EP2011998A3 EP 2011998 A3 EP2011998 A3 EP 2011998A3 EP 20080159492 EP20080159492 EP 20080159492 EP 08159492 A EP08159492 A EP 08159492A EP 2011998 A3 EP2011998 A3 EP 2011998A3
Authority
EP
European Patent Office
Prior art keywords
fuel
discharge valve
compression chamber
combustion engine
internal combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20080159492
Other languages
German (de)
French (fr)
Other versions
EP2011998B1 (en
EP2011998A2 (en
Inventor
Masayuki Kobayashi
Hitoshi Shibata
Tatsumi Oguri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of EP2011998A2 publication Critical patent/EP2011998A2/en
Publication of EP2011998A3 publication Critical patent/EP2011998A3/en
Application granted granted Critical
Publication of EP2011998B1 publication Critical patent/EP2011998B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/447—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7847—With leak passage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7847—With leak passage
    • Y10T137/7849—Bypass in valve casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel pump includes a pump housing (120, 121) having a compression chamber (123). A plunger (150) is axially movable in the pump housing (120, 121) for pressurizing fuel in the compression chamber (123). A discharge valve (11) is configured to open to supply fuel from the compression chamber (123) to an internal combustion engine when pressure in the compression chamber (123) is more than predetermined pressure. A fuel passage (125) is configured to communicate a downstream of the discharge valve with an upstream of the discharge valve. An in-passage member (12, 17) is accommodated in the fuel passage. The in-passage member (12, 17) includes multiple members, which are combined to define a throttle portion (20) for restricting fuel, which returns from the downstream of the discharge valve to the upstream of the discharge valve.
EP20080159492 2007-07-06 2008-07-02 Fuel pump for internal combustion engine Expired - Fee Related EP2011998B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007178904A JP4380739B2 (en) 2007-07-06 2007-07-06 High pressure fuel pump

Publications (3)

Publication Number Publication Date
EP2011998A2 EP2011998A2 (en) 2009-01-07
EP2011998A3 true EP2011998A3 (en) 2009-03-04
EP2011998B1 EP2011998B1 (en) 2010-06-30

Family

ID=39797938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080159492 Expired - Fee Related EP2011998B1 (en) 2007-07-06 2008-07-02 Fuel pump for internal combustion engine

Country Status (5)

Country Link
US (1) US8092198B2 (en)
EP (1) EP2011998B1 (en)
JP (1) JP4380739B2 (en)
CN (1) CN101338719B (en)
DE (1) DE602008001628D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5491425B2 (en) * 2011-01-20 2014-05-14 株式会社デンソー High pressure pump
JP5653288B2 (en) * 2011-04-27 2015-01-14 株式会社デンソー Constant residual pressure valve
JP5527312B2 (en) * 2011-12-05 2014-06-18 株式会社デンソー Auto fretage processing equipment
CN106460743B (en) * 2014-04-21 2017-12-22 斯坦蒂内有限责任公司 Pressure-reducing valve for single plunger fuel pump
US9297375B1 (en) * 2014-12-12 2016-03-29 Forum Us, Inc. Fluid cylinder block having a stress distributing joint

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591401A (en) * 1947-03-08 1952-04-01 Atlas Diesel Ab Fuel injection device
GB1216682A (en) * 1967-12-08 1970-12-23 Tsni I K I Toplivnoi Apparatur A delivery valve arrangement of fuel injection pumps for internal combustion engines
EP0163078A1 (en) * 1984-05-10 1985-12-04 Robert Bosch Gmbh Delivery valve
EP1411238A1 (en) * 2002-10-15 2004-04-21 Robert Bosch Gmbh Pressure regulating valve for an injection system
US20060222538A1 (en) * 2005-03-30 2006-10-05 Denso Corporation Fuel pump having plunger and fuel supply system using the same
WO2006134588A1 (en) * 2005-06-16 2006-12-21 Raval A.C.S. Ltd. Double check valve for a fuel system
EP1788231A1 (en) * 2005-11-16 2007-05-23 Hitachi, Ltd. High-pressure fuel pump
WO2007122127A1 (en) * 2006-04-25 2007-11-01 Robert Bosch Gmbh High pressure fuel pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622613A (en) * 1947-06-02 1952-12-23 Andale Co Pressure control valve
US4080988A (en) * 1976-09-20 1978-03-28 Malor Manufacturing, Inc. Combination employing controlled flow check valve
FR2460434A1 (en) * 1979-06-28 1981-01-23 Commissariat Energie Atomique AUTOMATIC PURGE SAFETY VALVE
JPS5822858A (en) * 1981-08-03 1983-02-10 株式会社東芝 Differential pressure automatic changeover type three-way valve
GB9424021D0 (en) * 1994-11-29 1995-01-18 Lucas Ind Plc Fuel pumping apparatus
JPH10148168A (en) 1996-11-19 1998-06-02 Zexel Corp Isobaric valve device for fuel injection pump
JP2001050174A (en) 1999-08-03 2001-02-23 Hitachi Ltd Fuel supply pump
CN100473821C (en) * 2005-03-30 2009-04-01 株式会社电装 Fuel pump having plunger and fuel supply system using the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591401A (en) * 1947-03-08 1952-04-01 Atlas Diesel Ab Fuel injection device
GB1216682A (en) * 1967-12-08 1970-12-23 Tsni I K I Toplivnoi Apparatur A delivery valve arrangement of fuel injection pumps for internal combustion engines
EP0163078A1 (en) * 1984-05-10 1985-12-04 Robert Bosch Gmbh Delivery valve
EP1411238A1 (en) * 2002-10-15 2004-04-21 Robert Bosch Gmbh Pressure regulating valve for an injection system
US20060222538A1 (en) * 2005-03-30 2006-10-05 Denso Corporation Fuel pump having plunger and fuel supply system using the same
WO2006134588A1 (en) * 2005-06-16 2006-12-21 Raval A.C.S. Ltd. Double check valve for a fuel system
EP1788231A1 (en) * 2005-11-16 2007-05-23 Hitachi, Ltd. High-pressure fuel pump
WO2007122127A1 (en) * 2006-04-25 2007-11-01 Robert Bosch Gmbh High pressure fuel pump

Also Published As

Publication number Publication date
EP2011998B1 (en) 2010-06-30
CN101338719A (en) 2009-01-07
US20090010789A1 (en) 2009-01-08
JP4380739B2 (en) 2009-12-09
CN101338719B (en) 2011-12-07
DE602008001628D1 (en) 2010-08-12
JP2009013937A (en) 2009-01-22
US8092198B2 (en) 2012-01-10
EP2011998A2 (en) 2009-01-07

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